Beckhoff: Digital Compact Servo Drives (AX2000/AX2500 Series)

Fully digital Servo Drives as an intelligent backbone

Servo Drives from the AX2000/AX2500 series are integrated as components of drive systems in electrical equipment or machines. The devices drive the brushless Synchronous Servomotors AM2000 and Linear Servomotors AL2000 with regulation of torque, speed or position.

The digital Servo Drives are available in two versions. The AX2000 series is a powerful variant with Servo Drives designed for nominal current of up to 70/80 A. The AX2500 series Servo Drives are modularly expandable and optimized for applications where space is tight. The maximum nominal current is 6 A. Both series are fully software-compatible among each other and are integrated in the TwinCAT control software.

Servo Drive AX2000

The standard versions of the Servo Drives AX2000 are available in six current ratings. Interference suppression filters are integrated into the power feeds for operation directly from the mains up to AX2020, as are suppression filters for the 24 V auxiliary voltage supply. The digital Servo Drives offer a large number of convenient functions. These include adjustable set value ramps, two analog monitor outputs, four program­mable digital inputs (two of which are defined, as standard, as limit switch inputs) and two digital outputs.

Integrated safety is also strongly emphasized. In the Servo Drives, the electrically secure isolation is in accordance with EN 50178 between the mains or motor connections. The electronics signal is achieved with appropriate “creepage” paths and complete potential separation. Further integrated functions offer soft starting, overvoltage detection, short-circuit protection and phase failure monitoring.

Servo Drive AX2500

The AX2500 series is integrated into the Beckhoff modular drive concept as an extension of the AX2000 Servo Drive series. The AX2500 Servo Drives are fully software compatible with the AX2000 and provide maximum output in the smallest space. In its maximum configuration the multi-axis system comprises eight axes, i.e. a master module with seven axis modules. The master module contains power supply unit, mains filter for power and auxiliary voltage, ballast circuit and resistor as well as a power output stage and can also be operated stand-alone. The subsequent additional axis modules are simply plugged directly into the master module and are connected in the intermediate DC circuit via a socket strip.

AX20xx | Digital Compact Servo Drives

The Digital Servo Drives combine the most modern power electronics with a compact practical size. The characteristics such as small dimensions, integrated EMC filters up to AX2020 and plug-in connectors allow simple and cost-effective installation into control cabinets.

An internal 32 bit microprocessor provides high quality control, with sampling times down to 62 µs. The variable fieldbus connection permits easy integration into a variety of control environments: EtherCAT, PROFIBUS, SERCOS interface, CANopen, DeviceNet, real-time Ethernet and Lightbus. Together with the Synchronous Servomotors of the AM2xxx, AM3xxx and AL2xxx/AL3800 series, the Compact Servo Drives offer an ideally matching digital drive system.

Features

AX25xx | Digital Compact Servo Drives

The AX2500 series is a modular drive system. The AX2500 Servo Drives are fully software-compatible with the AX2000. In its maximum configuration, the multi-axis system comprises eight axes, i.e. a supply module with seven axis modules. The supply module comprises a power supply, a mains filter for power and auxiliary voltage, a ballast circuit and resistor and a power output stage. The following axis modules are simply plugged directly onto the supply module and connected with each other in the intermediate DC circuit via a socket strip, which is also used for looping through the 24 V DC auxiliary voltage. This provides the user with a very compact, cost-optimized servo system, which is flexibly adaptable to the respective requirements. Compared with single axes, the wiring and commissioning effort is reduced significantly. The modular concept also minimizes possible sources of error.

The variable fieldbus connection enables simple integration into various control worlds: PROFIBUS DP, SERCOS interface, CANopen, real-time Ethernet and Lightbus. The AX2500 Servo Drive can be used for motors with resolver or with single-turn/multi-turn absolute encoder. The operation of linear and asynchronous motors is also possible. Ready-made motor and feedback lines are offered as accessories.

Features